Milking apparatus.



L. DINESBN. MILKING APPARATUS.

APPLICATION FILED AUG.30, 1909.

' Patented Sept. 9, 1913.

2 SHEETS-SHEET 1.

L. DINESEN. MILKING APPARATUS. APPLICATION I'I-LED AUG. 30. 1909.

3 E 7 ra ow w .B

M M m 5 3 t f mm A hair-5 Pill! m: urn-h nsnmunn c LAURITS DINESEN; OF VEZELE;

"hotness.

MILKIfiG..;APPABA-THS.

.sgeci ficatiomof Letterslatent.

Rammed Sets $1913.-

: Applipetion filed August 30, 1909; Serial No. 515,265.:

T0422] whom it mag concern;

Be. it,;kn.o.wn thatI, LAURITS.DINESEN, a

subjectof the. King o;t. Den n ark, residing at. Voile, Provincepf, .Iylland and. Kingdorn, .of Denmark, have. invented certain new.

. an'dusef ul l'n'iproveinents in MilkingAp paratus; and vLdo hereby dc1are the follow.

lug-to be afull, clear, and exact description of the invention, such.'as.will enable others skilled in the. art,to. which.it appertains .to.

'tu s hnd has. for. itsobject to improve. the

samejn theseverallpgrticulars hereinafter no ed", i

Theinvention consists ofthe novel devices and, combination 0t devices hereinafter de-r scribed anddefinedin the claims.

In; the. acompanying drawingswhich illustrate,.theinvention, like. characters indicate like-parts. throughouqthe several views. I

lieferringio the drawings; Eigu-re .1 is .a View; chiefly in front. elevatioiiflbut With ofigthe milking. ,apperatus whichfare. applied i1? ,s pail .cover'; Fig. 2 is. r side elevation -o the parts shown Fig. 1, some. parts beingsectioned; Fig. 3 is a. plan view of theparts shown in Figs, 1, and .2; Fig 4 is. a.-deteil;,in horizontalsection, on an en- 'larger]..scale.taken. on the line 00 w of 1, showing a valve mechanism for internrit tentlywarying the pressure in the.teat cups;

..1 Ij.g.; 5 .is a detail view. principally in side elevation but with soineparts sectioned on the li1 1e-,.a1 afiofFig. 4; Fig. (Sis a sectionin}; blocks 23 and 241thataretightly drawn.

teken ona. line .wfm otFig. 4,. and Fig. 7

. is a viewpartly-in side. elevation and partly in-..-s'ection howing one of the teat cups.

) Theprincipal .parts of lil1.IDlClllIl. are; supponted gby. upright bearing plates 1, securediat, their lower ends toacover 2, that detachahly fitsthe upper endor mouth of thennillt; can A, and closes .tliesalneivitl an 1 tigl 1t .joint. A. pair. of oscillating cylinders .3 311514, which, are open. at their upper ends,; a1;e-. pivotally connected to the bearing plates 1 by. bolts 5-.and 6. On their sides, adjacent-to thebearing plates 1, the rylindersare. formed with fiat-faced; bearagainst. thesiiid .bearingplates springs 7 L nd -.8, shown; as applied. respectively to. the

pivot-boltsfi and 6, and compressed between .a-pplied...onthe sa d the..-'p lat es. 1 and nuts bolts.

In the cylindersv 3 .and 4 are pistons 9'and 1O provided respectively with rigidly secured upwardly extended piston rods 11 and IQ-th'at' are pivotally connected respectively to cranks. 13 a'ndfl41of'a shaft l5that is journaled in. theupperportions of the frame plates 1. This shat't 15 carries a spur gear 16. The pistons flan (1'10 divide thecylinders 3 a1 1d 4jresp.ectively, into compartments 17' 18 and 192'O. From. compartments 18 and 20, ports 21 and '22 respectively lead out through .thebcaring blocks 23 and 24 ofthe cylinders-3' and4; and'are adapted'to be connected alternatelywith tubes 25 and 26. respectively, or with the atmosphere through ports 27 and 28; The branch tubes 25and2bf are connected, through a normally open valve or stop cock 29, with .a. branch tube 30. The cylinder eompartments 18 and 20. are. connected with this branch tube 30, when the respectivepiston is nearest'to the open upper'end pf its operating cylinder.

On th'e right bea1'ing plate.1,- as seen in and 3G to the atmosphere, while the said I I port 38 is locateddiametrically:opposite to.

the central portion of the port 37 and is adapted to be intermittently opened by the saidport 35. l urthermore, said port 38 is permanentlyconnected to the branch tube 30 through atube 39. The inner valve is rigidly secured to-the inner en'dof a shaft 43, the outer end of which is secured. for rotation with aspur gear 42 that meshes with aspur gear 1.6, and is journaled in a suitable bearing, not shown. The outer valve' 34 (see Fig.1) is caused to rotate with a gear 42 by a pair of pins 40*preferably se: ouredto said valve and ,.arranged to Work through perforations insa-idgear. 'A spring 44 which, surroundsthe shaft- 43 reacts againstthe gear.42 and holds the; valves 33- and. 34. seated against thecover 32; wlrile free for rotation. 7

From, the. val e bo x.3l extends the tube the vacuum pump, or means for producing -to the branch pipe 30 already noted, and beflexible tubes 55, which latter are connected,

49- 50 should then be opened so'as to cause 4 which preferably terminates in branches t 46 and 47 (see Figs. 3 and 4). On the shaft 15 is a fly wheel 48. Secured to. and opening upward through the cover 2, is a pair of stop cocks 49 and 50, and a suction tube The lower end of this suction tube 51 extends below the cover 2 and is connected low this branch tube said suction tube 51 is provided with a check valve 52, which prevents'zgmospheric air from the branch pipe 30 froi being admitted into the milk can A. The upper or outer end of this air suction tube 51 is connected to a suitable vacuum pump or suitable means for producing suction or partial vacuum.

In practice, four teat cups will usually be employed in connection with each milk pail attachment and these teat cups will be connected to the stop cocks 49 and 50 in pairs. In the drawings, only one of these teatcups isshown,'but all will be alike. The inner body portion 53 of this teat cup is made of flexible material and is so constructed that it will quite closely fit the cows teat. This. teat cup is provided with an air tightjacket or surrounding chamber formed between the same and an outer shell 54 of stiff or non-collapsible material that is preferably formed with a spiral corrugation to increase its ability to withstand atmospheric pressure, when the partial vacuum is created within the same. The air chambers between the teat-cups and surrounding jacketsare connected to flexible branch tubes 55 of one to each of the branch tubes 46--47, (see Figs. 3 and 7). The teat cups-53, at their lower extremities, are connected respectively to flexible branch tubes 56 of flexible milk tubes 56* to the stop cocks 49-50, (see also Figs. 3 and 7). Secured to the under side of the cover 2, just below the inner extremity of each stop cock 49-5{0,and de-- taehably held by means of annu ar holders 57, are strainers 5.8.

When the cows are to be milked, the suction tube 51 must, of course, be connected to partial vacuum; and while the valves 2!), 4950 are closed, air is .l 1mped,;trom the milk can. Then the flexible tubes 55 and 56 should be connected respectively. to the branch pipes 46 47 and stop cocks 4950, if they have not previously been so attached. When this has been done, the teat cups should be placedjon the cows teats and the stop cocks the teat cups to suck'tliemselvcs tight around the teats. When the stop cock 29 is opened, the air is, in the one instance, drawn out of the lower compartment 18 of cylinder 3, and this causes piston 9't0 be driven downward by atmospheric pressure. \Vhen said piston has reached its lowest position, said bottoms of the teat cups, due to the spiral cylinder 3 will have been oscillated on :its pivot bolt 5 to such an extent that conn ction between tube 25 and port 21 is cut ca, but at the same time, said port 21 will be connected to port 27, which latter it will be remembered, opens'to the atmosphere, so that air will then enter the said cylinder compartments 18 and permit free return or upward movement of the cooperating piston 9. \Vhile the said piston 9 is making its return or upward movement, the piston 10 and the cylinder 4 will'be drawn downward by a duplication of the above described action of drawing downward the said piston 9.

Hence, under the action of thetwo reciprocatory cylinder and piston engines, 'a. continuous rotary motion isimparted to the shaft 15, and through the gears 16 and 42. to the. two valves 33 and 34 of the mechanism for. intermittently varying the pressure in the teat cups.

When the valves 33 and 34 are in position (see Fig. 4) to admit atmospheric air into .the valve box '31, air will be admitted through said box and through tubes 45, 4G, 55 and 55, to the air chambers which surround the teat caps '53, within the outer casings or shells 54; and as the travel of this incoming air is from the tops toward the corrugation of the shell 4, the cows teats will receive a downward pressure and downward stretchlng action, 1n a manner which is almost identical wlth the manner in which they are pinched and stretched by a hand the valve box 31, and the latter will be connected to the vacuum pump, through tubes 39, 30 and 51, and the partial vacuum will then be produced in the air chambers surrounding the teat cups, thereby loosening or expanding the teat cups and permitting internal suction from within the same to draw the teat cups upward on the cows teats, and at the same time, permits the cows teat-s to be expanded almost in the same way in which they'expand,in hand milking, when the grip of the hand is released therefrom. The teat cups, in this way, intermittently move upward and downward on the teats, and this together with the varying pressure and resulting expansion and contraction of 120 said teat cups produces a milking'action it the highest possible efliciency, which at the same time is agreeable to the cow.

With the above described apparatus, the

pressure or degree of suction in the milk can 25 tacle and a suction tube extending therefrom, a flexible cup provided with a surrounding air ehamber', a milk conduit extending from said cup to said milk receptacle, a pressure regulating tube extending from said section tube to the surrounding chamber of said teat cup, a rotary pressure controlling valve mechanism for intermittently connecting said pressure regulating tube to the atmosphere and to said'suc- 'tion tube, and means tor rotating said valve mechanism comprising a crank shaft, an,

oscillatory cylinder and piston motor conneeted tosaid crank sliaft,--a11d means operative under oscillatory movement of said motors to intermittently'and alternately connect said cylinder to the atmosphere and to said suction tube, substantially as described,

2. The combination with a closed milk ,re-'

ceptacle and a suction tube extending therefrom and provided with a check valve for preventing air from entering said milk receptacle, a flexible teatcup provlded wlth a surrounding air chamber having a noncollapsible outer val], a' milk conduit extending from 'said teat cup to said milk receptacle, apressure regulating tube extending from said suction tube to the surrounding chamber of said teat cap, a rotary pressure controlling valve mechanism for intermittently connecting said pressure regulating tube to the atmos here and to said suction tube, and means or rotating said valve mechanism comprising a shaft with cranks set one ahead ofthc other, a pair of oscillatory cylinder and piston motors connected to said crank shafts, and means operative under oscillatory movements of said motors to intermittently and alternately. connect said cylinders to the atmosphere and to said suction tube, substantially asdcseribed.

In testimony whereof I aflix my signature in presence of two witnesses. r

LAURITS DINESEN. Witnesses:

A. RnFsHANoE, K. NIELPIN. 

